Which of the Following Statements About Letter Reports Is Correct

Which of the following statements about letter reports is correct?

A) Letter reports written in the indirect order begin with the main finding or recommendation.
B) Letter reports written in the indirect order should always contain a subject line.
C) Letter reports generally do not open with any background information.
D) Letter reports generally use personal pronouns such as I, we, and you.
E) Letter reports are primarily used to present information to people within an organization.